Validity and Reproducibility of a Food Frequency Questionnaire for Dietary Assessment in Japanese People.

A 76-item food frequency questionnaire (FFQ) was developed to investigate nutritional epidemiology in urban residents in Japan. The authors prepared two food models-a life-size three-dimensional model and a life-size two-dimensional photograph-to assess the FFQ portion size. The validity of the FFQ was verified using the two food models by comparing them with 16-d weighted dietary records (WDRs).

Reproducibility and validity of the food frequency questionnaire for estimating habitual dietary intake in children and adolescents.

Background: A previous study reported the development a 75-item food frequency questionnaire for Japanese children (CFFQ). The first aim was to examine the reproducibility and validity of the CFFQ in order to assess dietary intake among two groups; 3-11 year old children (YC group) and 12-16 year old children (AD group). The second aim was to use the CFFQ and the FFQ for adults (AFFQ), and to determine which was better suited for assessing the intake of children in each group.

Development of a food frequency questionnaire to estimate habitual dietary intake in Japanese children.

Background: Food frequency questionnaires (FFQ) are used for epidemiological studies. Because of the wide variations in dietary habits within different populations, a FFQ must be developed to suit the specific group. To date, no FFQ has been developed for Japanese children.

[The impact of sedentary lifestyle on risk factors for cardiovascular disease among Japanese young women].

Objective: The purpose of this study was to examine body composition, blood biochemical markers, and dietary intake in 2 groups of young women engaged in different physical activities and to assess the impact of sedentary lifestyle on risk factors for diabetes and cardiovascular disease.

Methods: The subjects were 208 students of a women's university. Of these, 108 majored in nutrition (physically sedentary group, SG) and 100 majored in sports (physically active group, AG).

Limited acceptance of globalization in food habits among middle-aged women in Osaka, Japan.

The study was initiated to identify the effects of recent changes in dietary pattern in Japan on nutrient intake. In the large city of Osaka, Japan, 24-h food duplicate samples were collected from 26 middle-aged women, and nutrients in the duplicates were estimated in reference to standard tables of food composition. The subjects took 1844 kcal (7.

Reduction in estimated vitamin A intake induced by new food composition tables in Japan, where vitamin A is taken mostly from plant foods.

A revised edition of the standard tables of food composition was implemented in Japan in 2005; one of the major revision points is the change of retinol activity equivalents for pro-vitamin A carotenoids. This preliminary analysis was conducted to examine whether the revision affects the estimation of vitamin A intake; and if so, to what extent. Accordingly, a field survey was conducted to collect 24-h duplicates of daily foods of citizens, and 26 adult women volunteered.